%0 Journal Article %A Harry Oviedo %T A Spectral Gradient Projection Method for the Positive Semi-definite Procrustes Problem %J Revista colombiana de matematicas %D 2021 %P 109-123 %V 55 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/RCM_2021_55_1_a5/ %F RCM_2021_55_1_a5